阅读说明：本技术 一种防堵电磁泵 (Anti-blocking electromagnetic pump ) 是由 徐建群 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种防堵电磁泵,包括：主体,内部构成有工作腔和出液腔、以及连通两者的液流孔,工作腔内具有泵芯及泵芯座,泵芯座中开设形成液流孔；密封体,至少一部分设置于泵芯座的后端面且围绕液流孔；第一止回体,容置于出液腔内且前端具有至少一部分穿过液流孔的凸出部；第一弹簧,用以促使第一止回体复位,并由第一止回体及密封体共同封闭液流孔的后侧开口；第二止回体,后端与凸出部的前端面相抵,用以在泵芯向后动作时顶推第一止回体向后移动并露出液流孔的后侧开口。其技术方案能够方便可靠的解决止回体与泵芯座之间的粘连问题及污物堵塞液流孔的问题,且整体结构简洁可靠,生产及维护成本大大降低。(The invention discloses an anti-blocking electromagnetic pump, which comprises: the main body is internally provided with a working cavity, a liquid outlet cavity and a liquid flow hole for communicating the working cavity with the liquid outlet cavity, the working cavity is internally provided with a pump core and a pump core seat, and the pump core seat is internally provided with the liquid flow hole; the sealing body is at least partially arranged on the rear end surface of the pump core seat and surrounds the liquid flow hole; the first check body is accommodated in the liquid outlet cavity, and the front end of the first check body is provided with a protruding part at least one part of which penetrates through the liquid flow hole; the first spring is used for promoting the first check body to reset, and the first check body and the sealing body jointly close the rear opening of the liquid flow hole; and the rear end of the second check body is abutted against the front end face of the protruding part and used for pushing the first check body to move backwards and expose the rear opening of the liquid flow hole when the pump core moves backwards. The technical scheme can conveniently and reliably solve the problems of adhesion between the check body and the pump core seat and blockage of the liquid flow hole by dirt, and has the advantages of simple and reliable overall structure and greatly reduced production and maintenance cost.)

1. An anti-clogging electromagnetic pump, comprising:

the liquid pump comprises a main body (1), a working cavity, a liquid outlet cavity and a liquid flow hole, wherein the working cavity and the liquid outlet cavity are arranged in front and back, the liquid flow hole is communicated with the working cavity and the liquid outlet cavity, a pump core (2) and a pump core seat (3) are oppositely arranged in the working cavity, and the liquid flow hole is formed in the pump core seat (3);

the sealing body (4) is arranged in the main body (1), and at least one part of the sealing body (4) is arranged on the rear end face of the pump core seat (3) and surrounds the liquid flow hole;

a first check body (5) which is axially movably accommodated in the liquid outlet cavity and has a bulge (16) at the front end, wherein at least one part of the bulge penetrates through the liquid flow hole;

the first spring (6) is arranged in the liquid outlet cavity and used for promoting the first check body (5) to reset, and the rear side opening of the liquid outlet hole is sealed by the first check body (5) and the sealing body (4) together;

and the front end of the second check body (7) and the pump core (2) form a valve which enables water flow to pass through from front to back in a single direction, and the rear end of the second check body is abutted against the front end surface of the protruding part (16) and used for pushing the first check body (5) to move backwards and expose the rear side opening of the liquid flow hole when the pump core (2) moves backwards.

2. The electromagnetic blockage-preventing pump according to claim 1, further comprising a second spring (8) arranged in the inner hole of the pump core (2), wherein the second check body (7) at least partially extends into the inner hole of the pump core (2), the front end of the second spring (8) is connected with the front end surface of the pump core (2), and the rear end of the second spring (8) is connected with a connecting part formed by the front end of the second check body (7).

3. Anti-clogging electromagnetic pump according to claim 1, characterized in that said projections (16) are of a cylindrical configuration overall.

4. The electromagnetic anti-blocking pump according to claim 1, characterized in that the front end of the first spring (6) abuts against the rear end face of the first check body (5), and the rear end face of the first spring (6) abuts against the rear bottom face of the liquid outlet chamber.

5. The electromagnetic anti-blocking pump according to claim 2, characterized in that the second check body (7) extends into the outer periphery of the inner hole part of the pump core (2) and is also protruded outwards to form a guide structure (17).

6. The electromagnetic anti-blocking pump according to claim 5, characterized in that the guide structure (17) is a plurality of circumferentially uniform protrusions formed on the periphery of the second check body (7).

7. The electromagnetic anti-blocking pump according to claim 1, wherein the main body (1) comprises a metal tube (9), a coil (10) sleeved on the periphery of the metal tube (9), a coil plastic-coated body (18) coated on the periphery of the coil (10), a magnetizer (11) arranged outside the coil plastic-coated body (18), a pump shell (14) arranged at the rear side of the magnetizer (11), the pump core seat (3) arranged in the pump shell (14), and a water inlet magnetic tube (12) arranged at the front side of the magnetizer (11);

constitute in tubular metal resonator (9) the working chamber, in pump case (14) in the rear side position of pump core seat (3) constitutes there is the play sap cavity, the liquid flow hole set up form in pump core seat (3) and communicate working chamber and play sap cavity, the front end of intaking magnetic tube (12) constitutes to have the intercommunication to the inlet of working chamber, pump case (14) rear end constitutes to have the intercommunication to the liquid outlet in feed liquor chamber.

8. The electromagnetic anti-blocking pump according to claim 7, characterized in that a guide cavity with an open front side is formed in the pump core seat (3), and the outer diameter of the rear part of the pump core (2) is smaller than the outer diameter of the middle part thereof, extends into the guide cavity and abuts against the front end of the second check body (7).

9. The anti-clogging electromagnetic pump according to claim 7, wherein the rear end side opening of the pump housing (14) constitutes the liquid outlet.

Technical Field

The invention relates to the technical field of electromagnetic pumps, in particular to an anti-blocking electromagnetic pump.

Background

The electromagnetic pump is a liquid pump which directly combines power and a pump body into a whole, and mainly generates magnetic induction after an electromagnetic coil is electrified, so that a movable pump core generates electromagnetic oscillation to form vacuum in a piston cavity, a check valve in the piston cavity is opened, and a return spring drives the movable core to do reciprocating cyclic periodic vibration to pump water. The electromagnetic pump has the characteristics of simple structure, light volume and attractive appearance, and is widely applied to the matching of various small household appliance water supply devices such as electric irons, coffee machines, cleaning machines and the like.

In practical application, as the water used by the electromagnetic pump inevitably contains some impurities, the water outlet of the electromagnetic pump is easy to accumulate some impurities or scales, and particularly under the condition that the water outlet is small, the blockage fault occurs; meanwhile, the non-return body of the electromagnetic pump is easy to adhere to the pump core seat to a certain extent, and is difficult to push away only by water pressure, so that the electromagnetic pump breaks down.

Refer to the chinese patent publication No. CN210531083U, "an anti-blocking electromagnetic pump", which discloses an anti-blocking electromagnetic pump capable of dredging the water outlet and preventing the poor movement of the check body of the electromagnetic pump. The electromagnetic pump comprises a magnetizer, a coil plastic-coated coil, a magnetism isolating pipe and a pump core seat, wherein the coil plastic-coated coil is positioned at the periphery of the coil, the magnetism isolating pipe is connected with the pump core seat, the pump core seat comprises a water outlet, the coil is connected with the magnetizer, the magnetizer is connected with the magnetism isolating pipe, the utility model discloses a pump core, including the magnetism-isolating pipe, be equipped with pump core, pump core spring and pump core internal spring in the magnetism-isolating pipe, one side that the pump core was kept away from to pump core seat delivery port is provided with the first non return body with spring coupling in the pump core towards one side of pump core, one side that the pump core was kept away from to pump core seat delivery port is provided with the second non return body with non return body spring coupling, first non return body including cup joint the connecting portion in the spring in the pump core, be connected with connecting portion and with pump core seat inner chamber sliding seal's column sealing and set up in sealing outside terminal surface and with pump core seat delivery port assorted bulge, the length of bulge is under the solenoid valve quiescent condition sealing outside terminal surface with the nearest distance of second non return body.

Obviously, this patent can solve the above-mentioned problem, but the check structure is comparatively complicated among them, makes production and maintenance cost higher.

Disclosure of Invention

To the above problems existing in the prior art, an anti-blocking electromagnetic pump is provided to solve the adhesion problem between the check body assembly and the pump core seat and the problem that the sewage blocks the liquid flow hole, which is convenient and reliable, and is used for overcoming the technical defects.

The specific technical scheme is as follows:

an anti-clogging electromagnetic pump comprising:

the main body is internally provided with a working cavity, a liquid outlet cavity and a liquid flow hole for communicating the working cavity and the liquid outlet cavity which are arranged in front and back, a pump core and a pump core seat which are oppositely arranged are arranged in the working cavity, and the pump core seat is internally provided with the liquid flow hole;

the sealing body is arranged in the main body, and at least one part of the sealing body is arranged on the rear end face of the pump core seat and surrounds the liquid flow hole;

the first check body can be axially and movably contained in the liquid outlet cavity, and the front end of the first check body is provided with at least one part of a protruding part penetrating through the liquid flow hole;

the first spring is arranged in the liquid outlet cavity and used for promoting the first check body to reset, and the first check body and the sealing body jointly seal the rear opening of the liquid flow hole;

the front end of the second check body and the pump core form a valve which enables water flow to pass through from front to back in a one-way mode, and the rear end of the second check body is abutted against the front end face of the protruding portion and used for pushing the first check body to move backwards and expose the rear opening of the liquid flow hole when the pump core moves backwards.

Preferably, the pump further comprises a second spring arranged in the inner hole of the pump core, at least part of the second check body extends into the inner hole of the pump core, the front end of the second spring is connected with the front end face of the pump core, and the rear end of the second spring is connected with a connecting part formed by the front end of the second check body.

Preferably, the protruding portion is a cylindrical structure as a whole.

Preferably, the front end of the first spring abuts against the rear end face of the first check body, and the rear end face of the first spring abuts against the rear bottom face of the liquid outlet cavity.

Preferably, the periphery of the part of the second check body extending into the inner hole of the pump core is also outwards protruded to form a guide structure.

Preferably, the guide structure is a plurality of convex ridges which are annularly and uniformly protruded and formed on the periphery of the second check body.

Preferably, the main body comprises a metal pipe, a coil sleeved on the periphery of the metal pipe, a coil plastic-coated body coated on the periphery of the coil, a magnetizer arranged outside the coil plastic-coated body, a pump shell arranged on the rear side of the magnetizer, a pump core seat arranged in the pump shell, and a water inlet magnetic pipe arranged on the front side of the magnetizer;

the metal tube forms a working cavity, a liquid outlet cavity is formed in the pump shell at the rear side of the pump core seat, liquid flow holes are formed in the pump core seat and communicated with the working cavity and the liquid outlet cavity, a liquid inlet communicated to the working cavity is formed at the front end of the water inlet magnetic tube, and a liquid outlet communicated to the liquid inlet cavity is formed at the rear end of the pump shell.

Preferably, a guide cavity with an opening at the front side is formed in the pump core seat, and the outer diameter of the rear part of the pump core is smaller than that of the middle part of the pump core, extends into the guide cavity and abuts against the front end of the second check body.

Preferably, the rear end side of the pump shell is opened to form a liquid outlet.

The beneficial effects of the above technical scheme are that:

the anti-blocking electromagnetic pump comprises a main body, a sealing body, a first non-return body, a first spring and a second non-return body, the problem that the non-return body and a pump core seat cannot be solved only by water pressure can be conveniently and reliably solved, the problem that a liquid flow hole is blocked by dirt is solved, the overall structure is simple and reliable, and the production and maintenance cost is greatly reduced.

Drawings

FIG. 1 is a perspective view of an anti-clogging electromagnetic pump according to the present invention;

FIG. 2 is an exploded view of the anti-clogging electromagnetic pump of the present invention;

fig. 3 is a sectional view of the anti-clogging electromagnetic pump of the present invention.

Fig. 4 is a perspective view of a check body assembly in the anti-blocking electromagnetic pump according to the present invention.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the attached drawings. And defines the direction from left to right as viewed on the paper in fig. 3 as the direction from front to back in this embodiment.

Referring to fig. 1 to 4, the anti-blocking electromagnetic pump provided in this embodiment includes:

the main body 1 is internally provided with a working cavity and a liquid outlet cavity which are arranged in the front and back, and a liquid flow hole for communicating the working cavity and the liquid outlet cavity, the working cavity is internally provided with a pump core 2 and a pump core seat 3 which are oppositely arranged, and the liquid flow hole is formed in the pump core seat 3;

the sealing body 4 is arranged in the main body 1, and at least one part of the sealing body 4 is arranged on the rear end surface of the pump core seat 3 and surrounds the liquid flow hole;

the first check body 5 is axially movably accommodated in the liquid outlet cavity, and the front end of the first check body is provided with a bulge part 16 at least partially penetrating through the liquid flow hole;

the first spring 6 is arranged in the liquid outlet cavity and used for promoting the first check body 5 to reset, and the first check body 5 and the sealing body 4 jointly seal the rear opening of the liquid flow hole;

the front end of the second check body 7 and the pump core 2 form a valve which enables water flow to pass through from front to back in a one-way mode, and the rear end of the second check body abuts against the front end face of the protruding portion 16 so as to push the first check body 5 to move backwards and expose the rear opening of the liquid flow hole when the pump core 2 acts backwards.

In a specific application, the pump core 2 moves in a reciprocating manner in the working cavity, pushes the second check body 7 to move backwards when moving backwards, pushes the protruding part 16 and pushes the first check body 5 to move backwards by the second check body 7, meanwhile, the closed state of the rear side opening of the liquid flow hole is released, and the blocking object in the liquid flow hole is pushed to the working cavity by the action that the protruding part 16 penetrates through the liquid flow hole, so that the problems of adhesion between the first check body 5 and the pump core seat 3 and blocking of the liquid flow hole by dirt are solved; when the pump core 2 moves forward, the second check body 7 moves forward, the first spring 6 in a compressed state pushes the first check body 5 forward, the first check body 5 and the sealing body 4 together close the rear opening of the liquid flow hole, so that the working cavity is vacuumized, the next water pumping motion is prepared, the protrusion 16 pushes the second check body 7 to move forward, and the first check body 5, the second check body 7, the first spring 6 and the second spring 8 which is described below form a check body assembly in the embodiment.

Based on above-mentioned technical scheme, prevent stifled electromagnetic pump and include main part 1, seal 4, first non return body 5, first spring 6 and second non return body 7, adhesion problem and the filth that solve between non return body and the pump core seat 3 that can only rely on water pressure to solve that can be convenient and reliable stop up the liquid flow hole problem, and overall structure is succinct reliable, production and maintenance cost greatly reduced.

In a preferred embodiment, the anti-blocking electromagnetic pump further comprises a second spring 8 arranged in the inner hole of the pump core 2, the second check body 7 at least partially extends into the inner hole of the pump core 2, the front end of the second spring 8 is connected with the front end face of the pump core 2, and the rear end of the second spring 8 is connected with a connecting part formed by the front end of the second check body 7, so as to provide a pulling force for the second check body 7 to cling to the rear end face of the pump core 2. Further, the protrusion 16 has an overall cylindrical structure, and specifically, an outer diameter thereof is slightly smaller than an inner diameter of the liquid flow hole. Furthermore, the front end of the first spring 6 abuts against the rear end face of the first check body 5, and the rear end face of the first spring 6 abuts against the rear bottom face of the liquid outlet cavity. Furthermore, the outer periphery of the part of the second check body 7 extending into the inner hole of the pump core 2 is also provided with a guide structure 17 which protrudes outwards, and the maximum outer diameter of the guide structure 17 is not more than the inner diameter of the inner hole of the pump core 2. Further, the guiding structure 17 is a plurality of protrusions formed on the periphery of the second check body 7 and protruding uniformly in the circumferential direction.

In the concrete application, when the pump core 2 moves forwards, the second spring 8 drives the second check body 7 to synchronously move forwards under the action of tensile force, after a certain distance, the second check body 7 is pushed to move backwards relative to the pump core 2 and expose the rear side opening of the inner hole of the pump core 2 under the action of water pressure, so that liquid flow can flow into the working cavity from the inner hole of the pump core 2.

In a preferred embodiment, as shown in fig. 2 and 3 in particular, the main body 1 includes a metal tube 9, a coil 10 sleeved on the periphery of the metal tube 9, a coil plastic-coated 18 wrapped on the periphery of the coil 10, a magnetic conductor 11 disposed outside the coil plastic-coated 18, a pump housing 14 disposed behind the magnetic conductor 11, a pump core holder 3 installed in the pump housing 14, and a water inlet magnetic tube 12 disposed in front of the magnetic conductor 11, and the metal tube 9 forms the working chamber, the pump housing 14 forms the liquid outlet chamber in the rear of the pump core holder 3, the liquid outlet hole is formed in the pump core holder 3 and communicates with the working chamber and the liquid outlet chamber, the front end of the water inlet magnetic tube 12 forms a liquid inlet communicating with the working chamber, and the rear end of the pump housing 14 forms a liquid outlet communicating with the liquid inlet to the chamber. Further, the rear end side of the pump housing 14 is opened to form the liquid outlet.

As a further preferred embodiment, the rear end of the water inlet magnetic pipe 12 extends into the working chamber and is arranged opposite to the front end of the pump core 2, and a third spring 19 is arranged between the rear end of the water inlet magnetic pipe 12 and the front end of the pump core 2 to assist the action of pushing the pump core 2 to move backwards. It is noted that the alternating current generated by the coil 10 electrically connected to an external power source causes the pump core 2 to reciprocate within the working chamber. Furthermore, a guide cavity with an opening at the front side is formed in the pump core seat 3, the outer diameter of the rear part of the pump core 2 is smaller than that of the middle part of the pump core, the rear part of the pump core extends into the guide cavity and abuts against the front end of the second check body 7, and the guide effect on the reciprocating action of the pump core 2 can be achieved. Furthermore, the rear end face of the sealing body 4 is sunken to form a hemispherical groove, and the front end structure of the first check body is matched with the hemispherical groove in shape to play a role in guiding.

In addition, for the purpose of sealing the inside of the main body 1, sealing members are further embedded or sleeved at a plurality of positions between the pump core 2 and the pump core seat 3, on the periphery of the water inlet magnetic pipe 12, and the like, and the front end and the rear end of the coil 10 are further provided with coil frames 13, respectively, and the main body 1 is further provided with pins 15 electrically connected with the coil 10 for inputting power, which are conventional means in the art, and therefore, the description thereof is omitted.

In a further preferred embodiment, a sealing sleeve is further disposed around the outer periphery of the pump core seat 3, and the sealing sleeve is embedded in the pump casing 14, and the sealing body 4 is a part of the sealing sleeve. Adopt the seal cover to replace among the prior art a plurality of sealing washers to realize the outside seal structure of pump core seat 3, can effectively play the effect that leak protection gas leaked on the one hand, sealed effect is better, and on the other hand assembly is more convenient.

The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.